CN116538542A - Fume exhaust fan - Google Patents

Abstract

The application discloses a range hood. A range hood, comprising: the fan assembly is arranged in the body; the lifting assembly is movably connected with the body, the lifting assembly comprises two guide plates connected in a rotating mode, an included angle is formed between the two guide plates, each guide plate is provided with a smoking opening, each guide plate is movably connected with the body, the included angle between the two guide plates is reduced, and the distance between two guide plate parts connected with the body is reduced under the condition that the lifting assembly descends to different positions relative to the body. Above-mentioned lampblack absorber is through the position change that lifting unit descends for the contained angle between two guide plates diminishes and connect the distance between two guide plate positions of body diminishes, from this, the smoking structure that is formed by two guide plates wholly is sleeked more, distributes more advantageously to the negative pressure region of guide plate.

Description

Fume exhaust fan

Technical Field

The application relates to the technical field of range hoods, in particular to a lifting range hood.

Background

Along with the improvement of the living standard of people, the requirements of people on kitchen environments are higher and higher, and the smoke absorbing capability of the range hood is also higher and higher. Under this background, the lampblack absorber includes lifting component, through lifting of lifting component, changes the position of smoking mouth, and then can improve smoking effect. In the related art, the lifting component comprises two guide plates which are distributed in a V shape, and the size and the angle of the negative pressure area of the guide plates can be changed in the lifting process of the lifting component, so that the smoking force matched with the oil smoke size is provided. However, the adjustment of the distribution of the negative pressure region by the lifting assembly is still not ideal.

Disclosure of Invention

The embodiment of the application provides a range hood.

The range hood of this application embodiment includes:

the fan assembly is arranged in the body;

the lifting assembly is movably connected with the body, the lifting assembly comprises two guide plates connected in a rotating mode, an included angle is formed between the two guide plates, each guide plate is provided with a smoking opening, each guide plate is movably connected with the body, the included angle between the two guide plates is reduced, and the distance between two guide plate parts connected with the body is reduced under the condition that the lifting assembly descends to different positions relative to the body.

Above-mentioned lampblack absorber is through the position change that lifting unit descends for the contained angle between two guide plates diminishes and connect the distance between two guide plate positions of body diminishes, from this, the smoking structure that is formed by two guide plates wholly is sleeked more, distributes more advantageously to the negative pressure region of guide plate.

In some embodiments, the body includes a sliding member and two opposite side plates, the side plates are provided with a sliding groove, the sliding member is rotationally connected with the guide plate, the sliding member is at least partially positioned in the sliding groove, the lifting assembly is configured to slide in the sliding groove to adjust the inclination angle of the guide plate relative to the body and adjust the position of the guide plate part connected with the body in the position changing process.

In some embodiments, the sliding member includes a sliding sleeve that passes through the chute, and the body further includes a fixed shaft that passes through the sliding sleeve and is connected to the baffle.

In some embodiments, the body further comprises a support plate, the chute comprises a first chute wall and a second chute wall opposite to each other, the first chute wall is provided with a notch, the support plate is penetrated through the notch or the chute, the support plate is opposite to the second chute wall, and the sliding piece is configured to slide in a space between the support plate and the second chute wall.

In some embodiments, each baffle is provided with a first oil screen and a second oil screen, the positions of which are relatively fixed, the lifting assembly can be switched between a first position and a second position relative to the body, the lifting assembly is in the first position, the first oil screen is exposed out of the body, the second oil screen is hidden in the body, and the lifting assembly is in the second position, the first oil screen and the second oil screen are exposed out of the body, and the first oil screen and the second oil screen are both formed with the smoking openings.

In some embodiments, the overall length of the baffle is unchanged and the angle of inclination of the baffle relative to the body is different with the lift assembly in any position relative to the body.

In certain embodiments, the range hood comprises a drive assembly and a connection assembly, the drive assembly is connected with the lifting assembly through the connection assembly, the lifting assembly comprises a bottom plate, the connection assembly comprises a cross beam, the bottom plate and the cross beam extend along the length direction of the range hood, the length of the cross beam is the same as the length of the bottom plate, and the cross beam is connected with the bottom plate.

In some embodiments, the connecting assembly comprises a first fixing member, a connecting member and a second fixing member, the driving assembly is fixed on the first fixing member, the second fixing member and the connecting member are fixed on the cross beam, the driving assembly comprises a sliding block, the sliding block is connected with the connecting member, the first fixing member and the second fixing member can slide relatively, and a channel for limiting the sliding of the second fixing member is formed on the first fixing member.

In some embodiments, the first and second securing members are connected by a slide assembly.

In some embodiments, the second fixing member includes two, the first fixing member includes a plate body and two side wings, the two side wings are respectively provided at two sides of the plate body, the two side wings are respectively located at outer sides of the two second fixing members, and the channel is formed between the two side wings.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic perspective view of a range hood according to an embodiment of the present application;

fig. 2 is a schematic cross-sectional view of a range hood according to an embodiment of the present application;

fig. 3 is another schematic cross-sectional view of a range hood according to an embodiment of the present application;

fig. 4 is a schematic diagram illustrating a comparison of a range hood in the related art and a lifting assembly of the range hood according to an embodiment of the present application;

fig. 5 is a schematic view of a part of the structure of the range hood according to the embodiment of the present application;

fig. 6 is a further schematic cross-sectional view of a range hood according to an embodiment of the present application;

FIG. 7 is an enlarged schematic view of portion B of FIG. 2;

fig. 8 is a schematic front view of a range hood according to an embodiment of the present application;

fig. 9 is a schematic bottom view of a range hood according to an embodiment of the present application;

fig. 10 is another perspective view of a range hood according to an embodiment of the present application;

fig. 11 is another schematic front view of a range hood according to an embodiment of the present application;

fig. 12 is another bottom schematic view of a range hood according to an embodiment of the present application;

FIG. 13 is a schematic diagram illustrating a comparison of a lift assembly according to an embodiment of the present disclosure in a first position and a second position;

fig. 14 is a partially exploded schematic view of a range hood according to an embodiment of the present application;

fig. 15 is another partially exploded view of a range hood according to an embodiment of the present application;

fig. 16 is a further partially exploded view of the range hood according to the embodiment of the present application.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

Referring to fig. 1 to 6, a range hood 100 according to an embodiment of the present disclosure includes a main body 12 and a lifting assembly 14.

A fan assembly 16 is disposed within the body 12. The lifting assembly 14 is movably connected with the body 12, the lifting assembly 14 comprises two guide plates 18 which are rotationally connected, an included angle is formed between the two guide plates 18, each guide plate 18 is provided with a smoking opening 23, each guide plate 18 is movably connected with the body 12, the included angle between the two guide plates 18 is reduced, and the distance between the two guide plates 18 and the position 36 of the body 12 is reduced under the condition that the lifting assembly 14 descends to different positions relative to the body 12.

The above range hood 100, by means of the descending position change of the lifting assembly 14, makes the included angle between the two guide plates 18 smaller and the distance between the two guide plate 18 parts 36 of the connecting body 12 smaller, so that the whole smoking structure formed by the two guide plates 18 is longer, and the distribution of the negative pressure area of the guide plates 18 is more beneficial.

Specifically, when viewed from the side (left side or right side) of the range hood 100, the two guide plates 18 are connected to form a V-shaped structure, and the oil net of each guide plate 18 may form the smoking openings 23, i.e. the smoking openings 23 on two sides of the lifting assembly 14 are distributed in a V-shape.

Referring to fig. 4, fig. 4 is a schematic diagram of two baffles 18 and a main body 12, wherein a solid line indicates an initial position of the lifting assembly 14, and a dotted line indicates a position of the lifting assembly 14 after being lowered.

In the initial position, a first angle between the two baffles in the related art is the same as a second angle between the two baffles 18 in the present embodiment.

Under the condition that the lifting assembly descends by the same distance L, in the related art, the distance between two guide plate parts of the connecting body is unchanged, and the first included angle is reduced.

In this embodiment, the distance between the two guide plates 18 and 36 of the connecting body 12 is reduced, the second included angle is reduced, but the second included angle is smaller than the first included angle, and the variation of the second included angle is larger, so that under the condition of equal descending stroke L, the variation of the inclination angle A2 of the guide plate 18 relative to the horizontal plane in this embodiment is larger than the variation of the inclination angle A1 of the guide plate relative to the horizontal plane in the related art, and thus, after the lifting assembly 14 descends, the triangle formed by the two guide plates 18 and the body 12 or the V-shaped structure formed by the two guide plates 18 is longer, and the distribution effect of the negative pressure areas on both sides of the guide plates 18 is better.

During the descent of the lifting assembly 14, the smoking opening 23 descends and changes the inclination angle a of the smoking opening 23 (the inclination angle a increases to optimize the negative pressure distribution, the inclination angle a of the deflector 18 with respect to the horizontal plane ranges from 35 ° to 65 °, and the lifting height H of the lifting assembly 14 ranges from 100 to 250mm, as shown in fig. 13).

In the case where the elevation assembly 14 is elevated to different positions with respect to the body 12, the angle between the two deflectors 18 becomes large, and the distance between the two deflector 18 portions 36 connecting the body 12 becomes large.

The range hood 100 further includes an oil cup 24, the oil cup 24 is located at the bottom of the lifting assembly 14, and the oil cup 24 can collect oil drops dropped by the deflector 18. In one embodiment, the range Hood 100 may be a mid-Island range Hood 100 or an Island Hood 100 (Island Hood), and the range Hood 100 may be installed below a ceiling and above a kitchen range. The cooktop may comprise a gas cooktop, or an induction cooker. The cooktop may include one or more burners on which cooking cookware may be placed. The range hood 100 may be mounted directly above the cooktop, with the lifting assembly 14 corresponding to the position of the burner of the cooktop. During cooking, the range hood 100 is opened to suck the oil smoke generated during cooking.

Referring to fig. 3, the fan assembly 16 includes a volute 59 and a fan 60, the fan 60 is located in the volute 59, two opposite sides of the volute 59 are provided with air inlets 62, and when the fan 60 is started, the smoke can be sucked from the smoke suction openings 23 on two sides through the two air inlets 62. Referring to fig. 5, the volute 59 is further provided with an air outlet 83, and the air outlet 83 is located on a circumferential side of the volute 59. Referring to fig. 3, two air inlets 62 are located on the left and right sides of the volute 59.

In certain embodiments, the body 12 includes a slider 38 and two opposing side plates 40. The side plate 40 defines a chute 42, the sliding member 38 is rotatably connected to the deflector 18, the sliding member 38 is at least partially disposed in the chute 42, and the sliding member 38 is configured to slide in the chute 42 to adjust the inclination of the deflector 18 relative to the body 12 and to adjust the position of the portion 36 of the deflector 18 connected to the body 12 during the position change of the lift assembly 14. In this manner, movement of the baffle 18 may be accommodated for lifting of the lift assembly 14.

Specifically, the upper end of the baffle 18 may be partially located between two side plates 4040, and two sliders 38 rotatably connect the upper left and upper right ends of one baffle 18, respectively. The chute 42 may be inclined downwardly at an angle relative to the horizontal. During the lifting process of the lifting assembly 14, the position of the lifting assembly 14 changes, so does the inclination angle of the entire deflector 18, and the position of the deflector 18 portion 36 of the connecting body 12.

Specifically, during the descending process of the lifting assembly 14, the inclination angle a of the guide plate 18 relative to the horizontal plane becomes gradually larger, the included angle between the two guide plates 18 becomes gradually smaller, the guide plate 18 becomes more inclined, the position of the guide plate 18 part 36 of the connecting body 12 moves obliquely downwards, so that the distance between the two guide plate 18 parts 36 of the connecting body 12 becomes smaller, simultaneously, the guide plate 18 drives the sliding piece 38 to move downwards in the chute 42 so as to adapt to the length change of the exposed part of the guide plate 18, and simultaneously, the guide plate 18 can rotate relative to the sliding piece 38 so as to adapt to the change of the inclination angle of the guide plate 18.

In this embodiment, the body 12 includes a frame assembly 64 and a fixing assembly 66, the fan assembly 16 may be installed in the frame assembly 64, the fixing assembly 66 is fixedly connected to the frame assembly 64, and the lifting assembly 14 is movably connected to the fixing assembly 66. The securing assembly 66 includes two side plates 40. Each baffle 18 is movably connected to two side plates 40, and the portion 36 of the baffle 18 connected to the body 12 may be the portion 36 of the baffle 18 connected to the side plate 40.

The range hood 100 further comprises a decorative cover 81, and the decorative cover 81 is sleeved on the periphery of the frame assembly 64, so that the range hood 100 is more attractive.

In some embodiments, the slider 38 includes a sliding sleeve 39, the sliding sleeve 39 passing through a chute 42, and the body 12 further includes a stationary shaft 41, the stationary shaft 41 passing through the sliding sleeve 39 and being coupled to the baffle 18. In this way, a rotational connection of the deflector 18 to the slider 38 can be achieved.

Specifically, the sliding sleeve 39 is disposed on the outer periphery of the fixed shaft 41, and the fixed shaft 41 may be fixedly connected to the upper end of the baffle 18. During the lifting process of the lifting assembly 14, the sliding sleeve 39 can slide back and forth along the sliding groove 42 and drive the upper end of the guide plate 18 to move up and down, and the guide plate 18 and the fixed shaft 41 can rotate around the axis of the sliding sleeve 39, so that the guide plate 18 adapts to the lifting motion of the lifting assembly 14.

In this embodiment, the portion 36 of the deflector 18 of the connection body 12 may be a portion where the upper ends of the deflector 18 are connected to the fixed shaft 41, and during the lifting of the lifting assembly 14, the upper ends of the two deflectors 18 are inclined away from each other, and the distance between the portions where the upper ends of the two deflectors 18 are connected to the fixed shaft 41 increases.

During the descending process of the lifting assembly 14, the upper ends of the two guide plates 18 are inclined downwards to be close to each other, and the distance between the positions where the upper ends of the two guide plates 18 are connected with the fixed shaft 41 is reduced. In other embodiments, the portion 36 of the baffle 18 of the connecting body 12 may also be the fixed shaft 41, or the sliding sleeve 39, or the portion where the fixed shaft 41 is connected to the sliding sleeve 39, etc., which is not specifically limited herein.

In one embodiment, the stationary shaft 41 may be threaded, welded, snapped, or the like with the baffle 18. In one embodiment, the stationary shaft 41 may be rotatably coupled to the baffle 18, with the stationary shaft 41 being fixedly or rotatably coupled to the sliding sleeve 39.

In some embodiments, referring to fig. 7, the body 12 further includes a support plate 43, the chute 42 includes a first chute wall 45 and a second chute wall 47 opposite to each other, the first chute wall 45 is provided with a notch 49, the support plate 43 is provided with the notch 49 or the chute 42, the support plate 43 is opposite to the second chute wall 47, and the sliding member 38 is configured to slide in a space between the support plate 43 and the second chute wall 47. In this way, the size of the chute 42 can be conveniently adjusted.

Specifically, in the embodiment shown in fig. 7, the chute 42 is in a racetrack shape, and the second chute wall 47 and the first chute wall 45 are two chute walls extending along the length direction of the chute 42. The notch 49 is formed on the first groove wall 45 along the length direction of the chute 42, the supporting plate 43 is approximately U-shaped, the supporting plate 43 is mounted on the first groove wall 45 from the U-shaped opening of the supporting plate 43, so that the bottom of the supporting plate 43 is located on the notch 49 or on the chute 42, and two sides of the U-shape respectively clamp the side plate 40 and fix the side plate 40.

In the case where the bottom of the support plate 43 is located at the notch 49, the distance between the bottom of the support plate 43 and the second groove wall 47 is larger, and the space between the support plate 43 and the second groove wall 47 is wider, it is possible to accommodate the larger-sized slider 38, or in the case of the same-sized slider 38, to provide a more relaxed sliding space.

In the case where the bottom of the support plate 43 is located at the chute 42, the distance between the bottom of the support plate 43 and the second chute wall 47 is small, the space between the support plate 43 and the second chute wall 47 is narrow, and it is possible to accommodate a smaller-sized slider 38, or in the case of an equally-sized slider 38, provide a tighter sliding space.

In summary, the clamping force of the sliding member 38 can be adjusted by adjusting the position of the supporting plate 43, or the supporting plate 43 can provide a larger contact area with the sliding member 38 than the wall of the sliding slot 42 to make the lifting assembly 14 more translational. It will be appreciated that the shape of the support plate may also be other shapes, not specifically limited herein.

In some embodiments, each baffle 18 is provided with a first oil screen 20 and a second oil screen 22 that are relatively fixed in position, the lifting assembly 14 is capable of being switched relative to the body 12 between a first position in which the first oil screen 20 is exposed to the outside of the body 12 and the second oil screen 22 is hidden within the body 12, and a second position in which the lifting assembly 14 is exposed to the outside of the body 12, and the first oil screen 20 and the second oil screen 22 are both formed with smoking openings 23. In this way, through the position change of the lifting assembly 14, the first oil net 20 alone or together with the second oil net 22 can form the smoking opening 23, so as to improve the negative pressure distribution and further improve the smoking effect.

Specifically, when the range hood is small, the lift assembly 14 may be in the first position and the range hood 100 draws the hood through the first oil screen 20.

When the range is large, the lifting assembly 14 can be lowered to the second position, and the range hood 100 draws oil through the first and second oil screens 20, 22.

On the one hand, the smoke suction opening 23 formed by the two oil nets descends and can be closer to a kitchen range, so that the smoke suction effect is improved, and on the other hand, the inclination angle of the smoke suction opening 23 of the oil net can be changed, the negative pressure distribution is improved, and the smoke suction effect is improved in the lifting process of the lifting assembly 14. In addition, the range hood 100 may further include a controller and a smoke sensor, wherein the controller is electrically connected to the smoke sensor, and the smoke sensor is used for collecting smoke data. The controller is used for calculating the oil smoke concentration according to the oil smoke data and controlling the lifting assembly 14 to lift to a certain working position according to the oil smoke concentration. The working position may be a first position, a second position, or other positions. The corresponding relation between the oil smoke concentration and the working position can be calibrated in advance and stored in the range hood 100.

The oil smoke sensor can be arranged on the side wall of the oil smoke channel. The oil smoke sensor may include a light emitting unit and a light receiving unit.

In one embodiment, the light emitting unit and the light receiving unit are arranged along a straight line along the radial direction of the oil smoke channel, and the light emitting light path of the light emitting unit is substantially aligned with the receiving light path of the light receiving unit.

When the oil smoke passes through the oil smoke channel between the light emitting unit and the light receiving unit, the light emitted by the light emitting unit is partially shielded due to the existence of oil smoke particles, the light intensity received by the light receiving unit can be reduced, and the light intensity signal output by the light receiving unit is correspondingly changed. The controller calculates the corresponding oil smoke concentration by collecting the light intensity signal output by the light receiving unit. In this embodiment, the magnitude of the light intensity signal is inversely related to the magnitude of the soot concentration.

In one embodiment, the light emitting unit and the light receiving unit may be arranged in a staggered manner along the circumferential direction of the oil smoke channel, and the light emitting path of the light emitting unit and the receiving path of the light receiving unit form an included angle greater than zero degrees and less than 180 degrees.

When the lampblack passes through a lampblack channel between the light emitting unit and the light receiving unit, due to the existence of lampblack particles, light emitted by the light emitting unit is reflected, the light intensity received by the light receiving unit can be increased, and a light intensity signal output by the light receiving unit is correspondingly changed. The controller calculates the corresponding oil smoke concentration by collecting the light intensity signal output by the light receiving unit. In this embodiment, the magnitude of the light intensity signal is positively correlated with the magnitude of the soot concentration.

It will be appreciated that the elevator assembly 14 may be located in other positions than the first and second positions, and that the elevator assembly 14 may be located in the first, second and other positions to provide different smoking capabilities to accommodate the size of the smoke by controlling the elevator travel of the elevator assembly 14.

In one embodiment, the first position may be the position of the maximum travel of the lift assembly 14 up and the second position may be the position of the maximum travel of the lift assembly 14 down. Wherein, in the case that the lifting assembly 14 is located at the second position (as shown in the right diagram of fig. 13), the distance between the lifting assembly 14 and the stove is the smallest, or the distance between the oil cup 24 and the body 12 is the largest; in the case where the lifting assembly 14 is in the first position (left-hand view as shown in fig. 13), the distance between the lifting assembly 14 and the cooktop is greatest, or the distance between the oil cup 24 and the body 12 is smallest. It will be appreciated that in other embodiments, the first and second positions may be further positions, not specifically defined herein.

With reference to fig. 1, 8 and 9, with the lifting assembly 14 in the first position, the second oil screen 22 is entirely or mostly hidden within the body 12, and does not participate in smoking, or has little participation in smoking. Referring to fig. 10-12, when the lifting assembly 14 is in the second position, the second oil net 22 is wholly or mostly exposed outside the body 12, and participates in smoking, or participates in smoking with a high participation degree.

Whether in the first position, the second position, or in other positions, the first wick 20 is wholly or largely exposed to the exterior of the body 12 for participation in smoking. The first oil screen 20 may include an outer oil screen and an inner oil screen, which are partially overlapped. Both the outer and inner oil screens may be removably mounted to the baffle 18 to facilitate cleaning of the oil screens. In addition, a glass panel is also arranged on the guide plate 18, so that the guide plate 18 is convenient to clean.

The smoking openings 23 formed by the first oil screen 20 can be used as lower smoking openings 23, and the smoking openings 23 formed by the second oil screen 22 can be used as upper smoking openings 23, so that the lower smoking openings 23 are used for mainly smoking, and smoking areas of auxiliary smoking of the upper smoking openings 23 are distributed.

In one embodiment, the first and/or second oil screens 20, 22 may be mounted at different openings of the baffle 18.

In one embodiment, the first and/or second oil networks 20, 22 may be formed by directly opening holes in the baffle 18. The mesh area formed by the oil screen forms the smoking openings 23. The participation degree of different oil nets in the cooking fume suction is changed through the lifting movement of the lifting assembly 14.

In one example, both the first and second oil screens 20, 22 may be made of metal.

In some embodiments, the first oil screen 20 is provided with a plurality of first smoking holes in a strip shape, and the plurality of first smoking holes are spaced apart along the length direction of the range hood 100. Thus, the smoking effect can be improved.

Specifically, the range hood 100 of the present embodiment is longer overall, and the plurality of first smoke holes 25 in a strip shape are disposed along the length direction of the range hood 100, so that the smoke absorption area formed by the first oil screen 20 can substantially cover the range hood area generated by the kitchen range. The plurality of first smoking apertures 25 may be arranged in parallel.

In certain embodiments, the second oil screen 22 is a honeycomb oil screen structure. Thus, the fume can be sucked away.

Specifically, when the generated oil smoke rises, most of the oil smoke is sucked away by the smoke suction openings 23 formed by the first oil screen 20, and a small part of the oil smoke continues to rise and spread to the outside of the range hood 100. When the second oil net 22 is exposed out of the body 12, the second smoking holes of the honeycomb oil net structure are densely distributed, so that the outward-expanded oil smoke can be gathered, the escape of the upper oil smoke is reduced, and the smoking effect is improved.

The positions of the first oil screen 20 and the second oil screen 22 are relatively fixed, that is, the relative positions between the first oil screen 20 and the second oil screen 22 are unchanged regardless of the position of the lifting assembly 14, so that the problems that oil smoke is accumulated in sliding parts and cleaning is difficult due to mutual sliding between different oil screens can be avoided.

In some embodiments, where the lift assembly 14 is located at any position relative to the body 12, the overall length of the baffle 18 is unchanged and the angle of inclination of the baffle 18 relative to the body 12 is different. In this way, the structure of the baffle 18 can be simplified.

Specifically, regardless of the position of the lifting assembly 14 relative to the body 12, the overall length of the baffle 18 is unchanged, and the adjustment of the size of the smoking area is not required to be achieved through sliding connection between the two oil nets, so that a sliding connection structure between the two oil nets is not required, the structure of the baffle 18 is simplified, and the problem that the baffle 18 is difficult to clean due to the accumulation of oil smoke in the sliding connection structure can be avoided.

In the case that the lifting assembly 14 is located at any position relative to the body 12, the overall length of the baffle 18 is unchanged, and the inclination angle of the baffle 18 relative to the body 12 is different, that is, by adjusting the inclination angle of the whole baffle 18 relative to the body 12, the baffle 18 can adapt to different lifting strokes of the lifting assembly 14, and the inclination angles of the first oil screen 20 and the second oil screen 22 are synchronously changed, so that the negative pressure distribution is improved, and the smoking effect is improved.

In certain embodiments, the range hood 100 includes a drive assembly 32 and a connection assembly 34, the drive assembly 32 is connected to the lift assembly 14 via the connection assembly 34, the lift assembly 14 includes a base plate 52, the connection assembly 34 includes a cross-member 56, the base plate 52 and the cross-member 56 extend along the length of the range hood 100, the cross-member 56 is the same length as the base plate 52, and the cross-member 56 is connected to the base plate 52. Thus, the lifting components 14 can be lifted synchronously at two sides, so that the inclination is prevented from being blocked, and the balance lifting is realized.

Specifically, the inner side of the bottom of the baffle 18 may be rotatably connected to the cross beam 56, referring to fig. 3, a first reinforcing plate 55 is disposed on the inner side of the bottom of the baffle 18, a second reinforcing plate 57 is disposed on the outer side of the cross beam 56, and the first reinforcing plate 55 and the second reinforcing plate 57 may be connected through a rotating shaft. In this embodiment, since the length of the range hood 100 is about 1.2m, the length of the beam 56 is about the same as that of the bottom plate 52, the beam 56 may be a penetrating beam 56, and the beam 56 is connected to the bottom plate 52, so that when the driving assembly 32 drives the lifting assembly 14 to lift through the connecting assembly 34, the beam 56 may drive the bottom plate 52 to lift synchronously integrally, thereby realizing the lifting synchronization of two sides (e.g. left and right sides) of the lifting assembly 14, preventing the tilting from being blocked, and realizing the balanced lifting.

The drive assembly 32 may be located within the frame assembly 64 and may be located below the fan assembly 16, and a portion of the connection assembly 34 may be located within the frame assembly 64 and a portion may extend out of the frame assembly 64 and connect with the lift assembly 14.

In some embodiments, the coupling assembly 34 includes a first mount 84, a coupling member 86, and a second mount 88, the drive assembly 32 is secured to the first mount 84, the second mount 88 and the coupling member 86 are secured to the cross beam 56, the drive assembly 32 includes a slider 90, the slider 90 is coupled to the coupling member 86, the first mount 84 and the second mount 88 are slidable relative to each other, and the first mount 84 defines a channel 98 that retains the second mount 88 when slid. In this way, the lifting assembly 14 can be lifted more smoothly.

Specifically, referring to fig. 14, the drive assembly 32 may include a motor 92, and the motor 92 may be a push rod motor. When the motor 92 is started, the slider 90 can be driven to move up and down, so as to drive the connecting piece 86 to lift, and then the connecting piece 86 drives the second fixing piece 88 and the lifting assembly 14 to lift. It will be appreciated that in other embodiments, the motor 92 may be other types of motors, and is not limited to a push rod motor. For example, the drive assembly 32 may include a gear set or screw through which rotational movement of the motor drive shaft is translated into up and down movement of the slider 90.

In the embodiment shown in fig. 16, the second securing members 88 include two, and the connecting member 86 is located between the two second securing members 88. The first mount 84 may be fixedly coupled to the inside of the frame assembly 64.

In some embodiments, the second fixing member 88 includes two, the first fixing member 84 includes a plate 94 and two side wings 96, the two side wings 96 are disposed on two sides of the plate 94, the two side wings 96 are disposed on outer sides of the two second fixing members 88, and a channel 98 is formed between the two side wings 96. In this manner, the first mount 84 may be formed with the channel 98.

Specifically, referring to fig. 15 and 16, each of the side wings 96 is located outside a corresponding one of the second fastening members 88. The channel 98 formed between the two side wings 96 can limit the sliding movement of the second fixing member 88, so that the lifting assembly 14 can be stably lifted.

In certain embodiments, the first mount 84 and the second mount 88 are connected by a slide rail assembly 97. Thus, the lifting smoothness of the lifting assembly 14 can be improved, and the clamping is avoided.

Specifically, the sliding rail assembly 97 may include a first sliding rail 95 and a second sliding rail 93, and the first sliding rail 95 and the second sliding rail 93 may be connected by balls (not shown). A first slide rail 95 is mounted on the outside of a second mount 88 and a second slide rail 93 is mounted on the inside of a side wing 96. A second fixing piece 88 and a side wing 96 are slidably connected through a first sliding rail 95 and a second sliding rail 93, so that the lifting assembly 14 can be lifted more smoothly, and the clamping of the lifting assembly 14 is avoided.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A range hood, comprising:

the fan assembly is arranged in the body;

the lifting assembly is movably connected with the body, the lifting assembly comprises two guide plates connected in a rotating mode, an included angle is formed between the two guide plates, each guide plate is provided with a smoking opening, each guide plate is movably connected with the body, the included angle between the two guide plates is reduced, and the distance between two guide plate parts connected with the body is reduced under the condition that the lifting assembly descends to different positions relative to the body.

2. The range hood of claim 1, wherein the body includes a slide and two opposing side plates, the side plates defining a slot, the slide rotatably coupled to the deflector, the slide at least partially positioned in the slot, the lift assembly being configured to slide in the slot during a position change to adjust an angle of inclination of the deflector relative to the body, and to adjust a position of a deflector portion coupled to the body.

3. The range hood of claim 2 wherein the slide includes a slide sleeve that extends through the chute, the body further including a stationary shaft that extends through the slide sleeve and is connected to the baffle.

4. The range hood of claim 2, wherein the body further comprises a support plate, the chute comprises a first chute wall and a second chute wall opposite each other, the first chute wall is provided with a notch, the support plate is threaded through the notch or the chute, the support plate is opposite the second chute wall, and the slider is configured to slide in a space between the support plate and the second chute wall.

5. The range hood of claim 1, wherein each baffle is provided with a first oil screen and a second oil screen which are relatively fixed in position, the lifting assembly can be switched between a first position and a second position relative to the body, the lifting assembly is exposed outside the body and the second oil screen is hidden in the body in the case of the first position, and the lifting assembly is exposed outside the body in the case of the second position, and the first oil screen and the second oil screen are both formed with the smoking openings.

6. The range hood according to any one of claims 1 to 5, wherein the overall length of the deflector is constant and the angle of inclination of the deflector relative to the body is different in the case where the lifting assembly is located at any position relative to the body.

7. The range hood of claim 1, wherein the range hood comprises a drive assembly and a connection assembly, the drive assembly is connected with the lifting assembly through the connection assembly, the lifting assembly comprises a bottom plate, the connection assembly comprises a cross beam, the bottom plate and the cross beam extend along the length direction of the range hood, the length of the cross beam is the same as the length of the bottom plate, and the cross beam is connected with the bottom plate.

8. The range hood of claim 7, wherein the connecting assembly comprises a first fixing member, a connecting member and a second fixing member, the driving assembly is fixed on the first fixing member, the second fixing member and the connecting member are fixed on the cross beam, the driving assembly comprises a sliding block, the sliding block is connected with the connecting member, the first fixing member and the second fixing member can slide relatively, and a channel for limiting the sliding of the second fixing member is formed on the first fixing member.

9. The range hood of claim 8, wherein the first mount and the second mount are coupled by a slide assembly.

10. The range hood according to claim 8, wherein the second fixing members comprise two, the first fixing members comprise a plate body and two side wings, the two side wings are respectively arranged on two sides of the plate body, the two side wings are respectively positioned on outer sides of the two second fixing members, and the channel is formed between the two side wings.